CANAIR 4C22 Wall-Mounted Heat Pump | 18,000 BTU - R454B - 220V | Montreal

In stock
SKU: 4C22SCH18H21
18,000BTU/h · cooling capacity
−15 °Cheats down to
Optional Wi-FiRefrigerant R-454B10-year warranty
Talk to a technician · 514 316-2973
Model number (outdoor)4C22SCH18H21
Model number (indoor)4C22SEH18H21
AHRI215449714

Reliability at the heart of modern comfort

At AirGreen, we believe true home comfort rests on three pillars: performance, quiet and reliability. The CANAIR 4C22 wall-mounted heat pump | 18,000 BTU – R454B – 220 V embodies that philosophy. Distributed in Quebec by Descair, it combines inverter technology, a clean design and high energy efficiency.
Whether you live in Montreal, Laval, Longueuil, on the North Shore or the South Shore, this heat pump blends into your home and delivers optimal comfort all year round.


A heat pump designed for Quebec’s realities

Quebec’s climate, with its harsh winters and humid summers, calls for HVAC units that can handle wide temperature swings. The CANAIR 4C22 is designed to heat down to -15°C. According to NEEP, it delivers 14,000 BTU/h at -8°C (COP 2.5) and 11,500 BTU/h at -15°C (COP 2.15). In summer, its 18,000 BTU cooling capacity keeps the air fresh and pleasant, even during July heat waves.

Smart, economical inverter technology

Inverter technology automatically adjusts the compressor speed to your home’s actual needs. The result:

  • A temperature that stays stable, without jolts or uncomfortable swings;

  • Lower energy use thanks to constant power adjustment;

  • Remarkably quiet operation, since the unit runs at low intensity most of the time;

  • Longer compressor life, with less wear than a traditional model.

Combined with a SEER2 of 19.2, this technology makes the CANAIR 4C22 a good choice for homeowners who want to lower their electricity costs while gaining comfort.


A quiet, good-looking design

The CANAIR 4C22 indoor unit runs as low as 19 dB(A), barely audible. The outdoor unit reaches 56 dB(A).

It all comes in a compact, modern and discreet design measuring 37.99 in x 8.46 in x 12.56 in. Its minimalist look fits any interior, whether a condo, a duplex or a family home.


Complete, durable engineering

  • TU1 copper coil, known for its corrosion resistance and durability;

  • Turbo mode to quickly reach the desired temperature;

  • Self-cleaning function that keeps the indoor unit clean and limits mould;

  • Silent mode for uninterrupted sleep;

  • “Follow Me” function, which adjusts the temperature to where the remote control is;

  • Cold-draft prevention, for a gentle start in heating mode;

  • Automatic restart after a power outage;

  • Optional Wi-Fi, for remote control from your smartphone.


Technical specifications

FeatureValue (18,000 BTU model)
Cooling capacity18,000 BTU (4,100 ~ 19,000)
Heating capacity18,800 BTU (6,200 ~ 20,200)
Heating according to NEEP14,000 BTU/h at -8°C (COP 2.5); 11,500 BTU/h at -15°C (COP 2.15)
RefrigerantR-454B (GWP 466, compared with 2,088 for R-410A)
SEER219.2
HSPF27.5 (region V); 9.6 (region IV)
EER210.8
Minimum heating temperature-15°C
Indoor / outdoor sound level19 / 56 dB(A)
Wi-FiOptional
Line set1/4 – 1/2 in
Voltage220 V
Warranty10 years compressor, 10 years parts, 6 years labour

Please note: this combination (indoor unit 4C22SEH18H21) is not on Hydro-Québec’s LogisVert list. The version with the 4C22SEH18H21-P indoor unit is on the list, with an indicative amount of $1,680; only Hydro-Québec confirms the aid granted.


Solid warranties and service to match

CANAIR offers a 10-year warranty on the compressor and parts. Labour is covered for 6 years, directly from the distributor.
At AirGreen, we also offer:

  • No advance or deposit required before the work is finished;

  • A clear, detailed quote before installation;

  • Experienced refrigeration technicians, under AirGreen’s RBQ licence 5645-9605-01;

  • Fast, friendly after-sales service, from our offices in Montreal and Boucherville.

Our philosophy is simple: you only pay at the end, when you are 100% satisfied.


Environmentally friendly, efficient and forward-looking

Running on electricity, the CANAIR 4C22 avoids the greenhouse gas emissions of natural gas heating and supports a sustainable energy transition. Its R-454B refrigerant has a global warming potential of 466, compared with 2,088 for R-410A.

Thanks to its energy efficiency, the CANAIR 4C22 helps you reduce your electricity costs while enjoying greater comfort.


AirGreen: your trusted HVAC partner

Choosing AirGreen means working with a local, RBQ-licensed company proud to serve Greater Montreal. We support our clients at every step:

  • Free on-site assessment;

  • Assessment of your needs based on your home’s area, insulation and orientation;

  • Recommendation of the right model for your habits and budget;

  • Fast installation, clean and guaranteed.

To see installations completed by our teams, visit our Our projects page.


A lasting investment for your home

The CANAIR 4C22 wall-mounted heat pump | 18,000 BTU – R454B – 220 V is more than a high-performing unit: it is a smart investment that lowers your energy costs and improves your quality of life. Its reliability, quiet operation and low environmental impact make it an excellent choice for any modern home.


Need a free estimate?
Call us today at 514-316-2973 or email sales@airgreen.ca to book your no-obligation consultation.
At AirGreen, your comfort is our priority, and you only pay when you are completely satisfied.

Warranty: 10 years on the compressor, 10 years on parts and 6 years on labour, directly from the distributor.